HQ30d Dissolved Oxygen Meter with LDO101 Hach
Specification
Barometric Pressure Measurement	For automatic compensation of DO when using an LDO or LBOD probe
BOD5/CBOD resolution	Available when used with Hach WIMS BOD Manager software
Calibration Curves Display	Calibration summary data logged and displayed
Calibration Intervals/alerts/Reminder	2 hours to 7 days
Compliance Certifications	CE
Conductivity Accuracy	± 0.5 % from ( 1µS/cm - 200 mS/cm )
Conductivity measurement	5 different stability modes
Conductivity Measurement Range	0.01 µS/cm to 200 mS/cm
Conductivity resolution	0.01 µS/cm with 2 digits
Custom Calibration Standards	User-defined standard sets
Data Export	Download via USB connection to PC or flash memory device.
	Automatically transfer entire data log or as readings are taken.
Data Memory	500 results
Data Storage	GLP/ISO compliant reading data stored with calibration details.
	Calibration details and check standard readings documented in data log.
	Automatically store in "press to read" mode and interval measurement mode.
	Manually store in "continous read" mode.
Digital ( intelligent ) electrode inputs	2 channel
Dimensions ( H x W x D )	197 x 95 x 36 mm
Display	Display readings from one or two probes
	Simultaneous readings from two probes ( HQ440d only )
	pH : pH, mV, temp.
	Conductivity : Conductivity, TDS, salinity, resistivity, temp.
	LDO : dissolved oxygen, pressure, temp.
	LBOD : dissolved oxygen, pressure, temp.
	ORP/Redox : mV, temp.
	Sodium : Sodium, mV, temp.
Display Lock Function	Continuous measurement or "press to read" mode available with averaging function for LDO measurement.
Display Type	240 x 160 pixel Display readings from one or two probes
	Simultaneous readings from two probes
	pH : pH, mV, temperature
	Conductivity : Conductivity, TDS, salinity, resistivity, temp.
	LDO : dissolved oxygen, pressure, temp.
	ORP/Redox : mV, temp.
	Sodium : Sodium, mV, temp.
DO Measurement Range	0.1 to 20 mg/L mg/L ( 0 to 200 % )
DO Resolution	0.01 mg/L mg/L
Fixed Buffer Selection	IUPAC standards
	( DIN 19266 ) or Technical buffer ( DIN 19267 ) or 4-7-10 series or user defined
Inputs	1
Interface Languages	13**
Internal Data Storage	500
IP Rating	IP67
ISE Direct Measurement Range	Yes
ISE Electrode Calibration	Electrode specific - see electrode user instructions
Languages	English, French, German, Italian, Spanish, Danish, Dutch, Polish, Portuguese, Turkish, Sweedsh, Czech, Russian
Measure Range ORP	-1500 to 1500 mV
mV Accuracy	± 0.1 mV
mV Measure at Stable Reading	5 ( auto ) stabilization settings
mV Measurement Range	-1500 to 1500 mV
mV Resolution	0.1 mV
Operating Error Messages	Text messages displayed
Operating Humidity	90 % relative humidity ( non-condensing )
Operating Interface	Keypad
Operating Temperature	5 to 45 °C
ORP Electrode Calibration	Predefined ORP standards ( including Zobell's solution )
Parameter	pH, mV, ISE, DO, Conductivity, TDS, Salinity, Resistivity, ORP, Temp
pH Accuracy	±
pH Electrode calibration	0.002
pH Measurement	0 to 14 pH
pH Measure at stable reading	5 stabilization settings
pH Resolution	Selectable between 0.001 to 0.1 pH
Printer	Optional accessory
Probe Type	Standard
Resolution	0.1/ 0.01/ 0.001
Salinity Resolution	0.01 ppt
Sample Temperature	2 channels
Sodium resolution	0.001 mg/L ( ppm )
Temp Compensation	Off, automatic, and manual ( auto correction is parameter dependent )
	Off, automatic, and manual ( auto correction is parameter dependent )
Warranty	1 year
Weight	0.71 lbs. ( 0.323 kg )